Pin board



Oct. 2, 1923. f L469550 F. c. WASI-:BURN

PIN BOARD Filed Jan. a, 1923 Patented @et Z, i923,

rREDnRroK cjwesnizurlv, or New BEDFORD, -MAssnCH-Usnrrs.l

Q il, w rin/Bosnio.

My invention relates to the 'construction pinboards such for instance as areem.- ployed intextile mil be easy to' repair 'when it becomes necessary to replace a bent or displaced pin 'with .a

- Vnew one;

YPin boards have heretofore,.in the best Inode ofconstruction, been made offthreeply glued wooden boards, by rstgluing together two of the board 'plies with 'their I grains crossing, boring holes in this two-ply board into which the fp'ins are tted,; p'roj'ecting `from one side, 'the vianges attached Vto the otherven'ds, of lthepins restingfageinst .the other side of the two-ply bojard; then gluing the third ply toftli'e' li'rst two, over the p iifi-tlan'ges, pressing; 'the board in a lveneerpress so as to squeeze the wood'of thee Aboard 'plies against the A.pin-lianges, clan'i'p-- Ting them in v'place and Athus providing as secure an anchorage fo'rjtljie pins as'was vpossible under the circumstances.

Obviously, whenever one 'of the bobbin z'pins in such aboard requires replacement, the work of repair is tliiiicu'lt, 'and .the resuits A'not wholly 'satisiactory.l

By my improvements herein described, a

Ypin board isprod-uced vin which the 'three plies ,ot 4the lbase may be assembled atV a single .gluing and pressing, the pins see'uredv in the base even. more tightly and 'rigidly than, heretofore, frorri whicha' damaged pin vmay be easily removed, an'dwhieh anew pin can beV fixed vas firmly and Securely fas the iorigina-i pin.

. In the ldrawings Vhereto 'ani-ieed, illustrate my improvementsin several f ornis constructiomf @y ,f Figure 1 shows a Aportion of a pin board basel in vertical section, with the several members of my improved pinoushioning- A I, n ,y cese ja, eylindric'aljannulus, slides witha lose" devices separated; Y

other alternative; and y Figures `8 and 9 vrare siniilarfviewsfbf a lsto-holdfbobins or Cops, i

modification y'slightly dep airtingF `frorh`the` and has for its object the construction ot'ja pin board in which the pins yar ,moi"'e se-` j curely held than heretofore, vand which shall these 'and in all other v4figures, re; Ya portion of a 'pin board base, consisting of all of .which involve the same'. principle Vof Jtl1e 'p'in,i and the "bridging :member ready to;

mit TE@ Periti/nr be forced "into engagement with the 'locking 1 nein'ber'; Figure 3, is .a similar view, fshowing `the pin, :lockingfmeinber `and 'we'dging member 1in, final position;

Figure'sje'entl 5 arevsimila-r views of 'alternative construction; Figures 6 and 7 aresiinilar viewsof'anspecific .feature's'ofgs l to 3, inclusive. ,i

Figures 1, 2 and rep'reseiit what l helieve to b'efthebestforininwhichto constfuct iny irniiirovenien-tin pin board-' :In

a threeply glued board, C, the side of a pocket, preferablyjbored tlie ibase in true ycylind ricafl forni, P bobbi'n pin, and .the pin flange, to which the Lpin 'P is irnily secured, 'or with which umay be integral. The pin flange F,v Vis adapted torest on fthe preferably be nearly fas large in fdianieterf as fthefi'side C of pooke't. Toise'cur'e 4'theY pin r and @aber 4it in the bi1-ssii,

sented in the several vfiglirfes of drawings by specificallyvariant fnisf; vi'z; p a locking axis ofthe pin) isl'greater 'in ar'ea than a section of the pocket-Spiro@ surround- ,are so :wliniforced Vto'i'gether 'in the pocket-space'aroundthe pin, the edgals ing y'I'neinber .spreads into an' 'eirter'iorly or [the bis@astoundingthe-peers,

and thus convertingithe 4poclret intb a flaring or und'ereiit reces'sin thev base-B. 7

rifles, ,in Figs. if, e and aire, 'pie P standsl in the pocket rnafd'e in V'the vIiiii board,

the 'bottyonif'of the' pocket', Athe looking ineinber ight on the outside liutf'eonical on the inside, So that it is anfannulusof downwardly l* flaring'. section, enters', l the pocket, infalging" a with 4the side (rig. e), rhwedging member nin-uis et over the pin ,Pfeile rs' aimensiened so that, it win entre if'geij"@iiarete'pfffbe f P and locking` member lil.:

Vbe easily replaced by cu Vclampineit securely against the bottoni of the pocket.

Preferably, the material of which the.

locking member and Wed oing member are made `1s denser and less compressible than the material of Which vthe base B isccmposed, so that substantially all of the displacement of material` by compression takes place in. the base, thus producing an undercut or conical. shape as pronounced as pos- .sible in the pocket, 'as the latter is linally formed.- rlhe locking; Wedglng. meme bers will, by preference be made of lard wood, such as maple, or of compressed nbre;

for purposes of removal and repair they .should be of material easily cut by in o tool.

Y Should the pin l) become damaged, itcan out the leel;- .ingv member or Wedgingr iember, or both, by means of a tubular Yboring or reaming tool when the damaeed pin. can be tal-ren out. Then a new pin will be placed' in position and anchored by means of new locking and Wedginp; members, Whichvvill collec-V j tively form an inwardly flaring lfiller,

Ytightly engagedV in the pocket.

rEhe above described mode of setting ar pin inthe pin 'board lQgives the pinA a firmer an- I Achorage than was possible by` the previously practised mode, aboye briefly described` be` cause the material surrounding' the pinV and bearing' on its flange is denser and harderV than that of Whichthe base B is composed, and because, locally, Vthe latter-material is condensed kby the compressive action of the locking member. ln pin boards made'by '.thevold method, the third ply of the base was -liableto be imperfectly glued around the pin l., together v over their flanges, Whereas in a board made by'my. im proved'method` the plies aresecurely Iglued the pin pockets beingbored after the plies v.are glued and set.

. Y' ln Figs. 4 and 5, the Wedrging member "'D 1s an annular truncated'cone, fitting over the "pin P, and flaring downwardly into the pocket, While the locking member E is eirterior tothe wedging memberfand is a cylindrical annulus, which Will just enter the espace between the thin end of the Wcde'ing f member E and the side C of thepin pocket. The outer lower edge of the'loclring mem- YVber lllfjs here shoWnas chamfered or rounded, at e', so as to guard against cutting inte entiremeeting surfaces;

the material of the ,base B when the lockingr member is beino forced into its final 'Josi- J f a h n Y tion, shown in Fig. e. Y

, ln Figs.V 6 and 7, the arrangement and relationship of parts is essentially the same as is shoe/n in Fics. land 5. and differ therefrom specifically in that the Wedgingmemf Dinstead of being originally separate from attached to the pin P, by being slid over it, is integral in material. Withtlie pin itself. l' lnY this instance the Wedging,I member is represented by the materialV of .vhiclithe conical surfaceflares downwardly and away rfrom the prolongation of the cy-`V lindrical surface ofthe `pin l), asr'indicated the dotted lines l', ber E2 (rounded atA c2) ceoperates Withl this Wedging'member DZin the same manner asV dees theloclringmember E With the Wedging member Di' ofV lfigsl andv Y ,y A

ift is Vthus apparent that the locking niem- The locking memi ber er the .vedgingniember may provide the flare required to producethe spreading'cfVv tlV e locking member against the siderof the pocket, and the compression of the material. cf the base B, which accompanies the change, of shape produced in the4 pocket.Y YFigures 8 and 9 illustrate how the taper or flare'Inlay'.Y

be provided in part Yby each ofthe Wedging and locking' members (D3, F3) g the two together, whatever the specific variation, proriding, when assembled, aninwardly flaringY plugcf material securely lodged in a simil larly flaring pocket, andV tightly, pressedv upon the pin flange.

i ln all the figures, the locking member (E, lil or E2) `is shown as ofV such height that when inplacein the pocket Vit projects above tliesurface' l'of the base B. rl`his annular projection provides Ya seat Varound the pin; P, on which a bobbin Willlrest, when. placed over the pin. This seat protects the softer material ef the base B from becoming Worn and groovechas is the case in bobbin pin boards as heretofore made", Y 'f What l claim and desire to secureby Let-V ters Patent is: y

l'. ln a pin board, the combination of a base'. rovideldfvwith Docket a pin, a flan e secured to one end thereof, and adapted "to lodgmentv at the bottom' ofthe pocket', a

Wedging member and a lockingmembencooperating to form an inwardly'flaring filler.. in the'pocket-sp'ace, confining the pin flange' against the bottom of the pocket and compressively displacing the material of theV base surrounding the pocket. 'i

2. in a pin/board, hecombinatpn if `base provided With a pocket, a pin', a flange secured to the end thereof and adapted to lodgment at the bottom of the pocket, a

.dredging member adjacent to the pin', and a locking member surrounding-l the Wedging, member, the wedgmg and locking" members .cooperating to form an inwardly daring l wedging member and a locking member, co-V y pressively displacing the material of the baseV filler in the pocket space, confining the pin fiange against the bottom of the pocket and compressively displacing the material of the base surrounding the pocket.

3. In a pin board, the combination of' a base provided with a pocket, a pin, a flange secured to one endthereof, and adapted to lodgment at the bottom of the pocket, va

operating to form an inwardly flaring filler in the pocket-space, confining the pin` flange against the bottom of the pocket, and compressively displacing the material offthel base surrounding the pocket, onev of said' members projecting above the surface of the' base to form a seat surroundin the pin.

4. In a pin board, the com ination of a base provided with a pocket, a pin, a ange securedto the end thereof and adapted to lodgment at the bottom of the pocket, 'a wedging member adjacent to the pin, and a locking member surrounding the wedging.

member, the wedging and` locking members cooperating to form an inwardly flaring `filler in the pocket space, confining the pin in the pocket-space, confining the pin flange Y against the bottom of the pocket and comsurrounding the pocket, the locking memberL `composed of material less compressible than that of which thejbase` iscomposed. Y

6. In a pin boardpthe combination.v of a base provided withv a pocket, a pin, a ange secured, to one end thereof and adapted to lodgment at the bottom of the pocket, a l wedging member adjacent to the pin, anda locking member surrounding the wedging member, the wedging and locking members cooperating to form kan inwardly flaring flange againstthe bottom of the pocket and compressively displacing the material of the base surrounding the pocket, thev lockingmember composed of material less compressible than that 'of which the base is composed.

to y filler in the pocket space, confining the npin '7. In a pin board, the combination of a base `provided with a pocket, a pin, a flange secured to one end thereof and adapted" to lodentat the bottom of the pocket, .a

*.iwedging member adjacentv to the pin, and a locking member Vsurrounding the wedging member, the wedging and locking' members cooperating to form an inwardly Haring filler in the pocket space, confining thepin flange against the bottom of thepocket and compressively displacing the material of the: base surrounding the pocket, the locking member composed of material less compressibl'e than that of which the base is com posed, and the lockingmember projecting above the surface of the base to form a seat surrounding the pin. Y

'Signed by me at'New Bedford this 29th Vday of December, 1922.V

FREDERICK o. wAsHBURN.

te Y 

